Practice Quiz #1
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Choose all correct statements about the tangent plane and partial derivatives:
Correct!
Correct!
Correct!
For the function f(x,y)=3x3+y3 find both partial derivatives at the point (0,0) (separate by semicolon; all numbers should be rounded up to 2 digits).
Consider the multivariate function f(x)=e((v,x)). Choose all appropriate sufficient reasons why it is differentiable at any point:
Correct!
Find the tangent plane to the function f(x,y)=xy+x at the point M=(−1,1) in the form Ax+By+Cz+1=0. Write the sum A+B+C.
Right!